A tensile test specimen begins to neck at a true strain = 0.20 and true stress = 244 MPa. Without knowing any more about the test, determine the strength coefficient and the strain-hardening exponent in the flow curve equation?

Which principle states: "geologic processes taking place on earth today operated similarly in the past and can be used to explain past geologic events"? a. lateral continuity

The boat's velocity relative to the riverbank can be resolved into two components. the component going north is 2.7 m/s and the component going west is 1.2 m/s.we add these two vectors and then find the magnitude of the resultant to get the speed.the magnitude of the resultant vector from adding can be obtained by the pythagorean theorem.    to two significant figures, the boat's speed relative to the riverbank is 3.0 m/s.

D.) a wheel barrow, due to the fact that where the weight is in the middle, the fulcrum is at the wheel, and the input force is at the other end

From movment law u have this case where: distance d is : d = v*t; v =  velocity; t = time; from here u can extract the time.